A collection of images and videos can be found here. They cover new scientific approaches as well as social events. Enjoy :).

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Research

Image Galleries

Publications with Videos


Benjamin Köhler, Matthias Grothoff, Matthias Gutberlet, Bernhard Preim
Vision Modelling und Visualization (VMV), in print, 2017
BIBTeX
Media
@InProceedings{Koehler_2017_VMV,
author = {Benjamin Köhler and Matthias Grothoff and Matthias Gutberlet and Bernhard Preim},
title = {{Visualization of Cardiac Blood Flow Using Anisotropic Ambient Occlusion for Lines}},
booktitle = {{Vision, Modelling und Visualization (VMV)}},
year = {2017},
address = {Bonn},
month = {Sebtember},
}
Visualization of Cardiac Blood Flow Using Anisotropic Ambient Occlusion for Lines
Patrick Saalfeld, Johannes Patzschke, Bernhard Preim
Mensch und Computer, pp. 73-82, 2017
BIBTeX
Media
@INPROCEEDINGS{Saalfeld_2017_MC_A,
author = {Patrick Saalfeld and Johannes Patzschke and Bernhard Preim},
title = {{An Immersive System for Exploring and Measuring Medical Image Data}},
booktitle = {{Mensch und Computer}},
year = {2017},
pages = {73-82},
}
Benjamin Behrendt, Benjamin Köhler, Uta Preim, Bernhard Preim
Bildverarbeitung für die Medizin (BVM), pp. 188-193, 2016
BIBTeX
Media
@InProceedings{Behrendt_2016_BVM,
author = {Benjamin Behrendt and Benjamin Köhler and Uta Preim and Bernhard Preim},
title = {{Enhancing Visibility of Blood Flow in Volume Rendered Cardiac 4D PC-MRI Data}},
booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
year = {2016},
pages = {188--193},
address = {Berlin},
keywords = {BVM,d},
owner = {behrendt},
timestamp = {2016.01.08},
}
Benjamin Behrendt: Enhancing Visibility of Blood Flow in Volume Rendered Cardiac 4D PC-MRI Data
Four-dimensional phase-contrast magnetic resonance imaging (4D PC-MRI ) is a method to non-invasively acquire blood flow in the aorta. This flow is commonly visualized as path lines inside of the vessels. Direct volume rendering (DVR) uses a transfer function to directly render the dataset without needing a manual segmentation. Since the transfer function can be manipulated on the fly, DVR allows fast exploration of the dataset. Using a simple intensity-based transfer function, however, either the intravascular blood flow would be hidden behind the vessel's front side or the entire vessel has to be culled from the visualization. Therefore, we propose an automated mechanism that reveals the vessel anatomy by removing their front sides based on the viewing direction. This creates an effect similar to frontface culling on surface renderings. The visibility of focus objects inside the anatomy is guaranteed while spatial awareness is mostly maintained due to the presence of anatomical structures as context information. While we were able to confirm the effectiveness of our method in an interview with a collaborating radiologist, it still proved to be somewhat limited by the data quality and lack of a manual segmentation.
Benjamin Köhler, Uta Preim, Matthias Grothoff, Matthias Gutberlet, Bernhard Preim
Bildverarbeitung für die Medizin (BVM), pp. 194-199, 2016
BIBTeX
Media
@INPROCEEDINGS{Koehler_2016_BVM,
author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias
Gutberlet and Bernhard Preim},
title = {{Adaptive Animations of Vortex Flow Extracted from Cardiac 4D PC-MRI
Data}},
booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
year = {2016},
pages = {194--199},
keywords = {BVM,d},
owner = {behrendt},
timestamp = {2016.01.08}
}
Adaptive Animations of Vortex Flow Extracted from Cardiac 4D PC-MRI Data
Monique Meuschke, Benjamin Köhler, Uta Preim, Bernhard Preim, Kai Lawonn
EuroVis 2016: Eurographics / IEEE VGTC Conference on Visualization 2016, pp. 351-360, 2016
BIBTeX
Media
@INPROCEEDINGS{Meuschke_2016_EuroVis,
author = {Monique Meuschke and Benjamin Köhler and Uta Preim and Bernhard Preim
and Kai Lawonn},
title = {{Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the
Aorta}},
booktitle = {{EuroVis 2016: Eurographics / IEEE VGTC Conference on Visualization
2016}},
year = {2016},
volume = {35},
number = {3},
pages = {351--360},
keywords = {EuroVis,d},
owner = {behrendt},
timestamp = {2016.04.22}
}
Semi-automatic Vortex Flow Classification in 4D PC-MRI Data of the Aorta
Steffen Oeltze-Jafra, Juan R. Cebral, Gábor Janiga, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 757-766, 2016
BIBTeX
Media
@ARTICLE{Oeltze_2015_TVCG,
author = {Steffen Oeltze-Jafra and Juan R. Cebral and Gábor Janiga and Bernhard
Preim},
title = {{Cluster Analysis of Vortical Flow in Simulations of Cerebral Aneurysm
Hemodynamics}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2016},
volume = {22 (1)},
pages = {757--766},
number = {1},
owner = {oeltze-jafra},
timestamp = {2015.08.10}
}
Investigating Vortical Flow in a Giant Aneurysm
The video illustrates our pipeline for investigating vortices in simulations of cerebral aneurysm hemodynamics. The demonstration case is a giant aneurysm of the left internal carotid artery (ICA) at the origin of the ophtalmic artery. The corresponding hemodynamic data was generated by Juan R. Cebral. In a first step, vortex core line segments are extracted from time step t of the simulation data and continuous core lines are formed in an enhancement step. Then, streamlines are integrated from core line points. To reduce visual clutter, streamlines are grouped based on equilibrium points along the core lines. The groups may be optionally refined in a clustering step generating a more detailed visualization of the flow pattern, especially further off the core lines. Finally, group/cluster representatives are computed and integrated with other simulated or derived data in a visual summary. The aneurysm at hand contains three major vortices. Among them is a so-called embedded vortex. This type of vortex is characterized by a vortex layer swirling in one direction along the vortex core line, and a second vortex layer swirling in the opposite direction and enveloping the first. The video illustrates a smart visibility strategy supporting the investigation of flow in the presence of multiple vortices. In an overview visualization, the representatives of all vortices are displayed. As the user zooms in on a vortex, all other vortices gradually disappear. If the user continues to zoom in, the representatives of the vortex in focus also start to fade-out and its spherical glyphs gradually shrink to reveal the core line and facilitate an inspection of its velocity magnitude profile.
A Sketch-Based Interface for 2D Illustration of Vascular Structures Diseases and Treatment Options with Real-Time Blood Flow
Patrick Saalfeld, Alexandra Baer, Uta Preim, Bernhard Preim, Kai Lawonn
Computer Vision Imaging and Computer Graphics Theory and Applications: International Joint Conference Revised Selected Papers, pp. 19-40, 2016
BIBTeX
Media
@INBOOK{Saalfeld_2016_CCIS,
chapter = {Computer Vision, Imaging and Computer Graphics Theory and Applications:
International Joint Conference, Revised Selected Papers},
pages = {19--40},
title = {A Sketch-Based Interface for 2D Illustration of Vascular Structures,
Diseases, and Treatment Options with Real-Time Blood Flow},
publisher = {Springer International Publishing},
year = {2016},
editor = {Braz, Jos{\`e} and Pettr{\`e}, Julien and Richard, Paul and Kerren,
Andreas and Linsen, Lars and Battiato, Sebastiano and Imai, Francisco},
author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim
and Kai Lawonn},
volume = {598},
isbn = {978-3-319-29971-6},
owner = {schumann},
timestamp = {2016.02.18}
}
Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow
Patrick Saalfeld, Aleksandar Stojnic, Bernhard Preim, Steffen Oeltze-Jafra
Proc. of Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM), pp. 123-132, 2016
BIBTeX
Media
@INPROCEEDINGS{Saalfeld_2016_VCBM,
author = {Patrick Saalfeld and Aleksandar Stojnic and Bernhard Preim and Steffen
Oeltze-Jafra},
title = {{Semi-Immersive 3D Sketching of Vascular Structures for Medical Education}},
booktitle = {{Proc. of Eurographics Workshop on Visual Computing for Biology and
Medicine (EG VCBM)}},
year = {2016},
pages = {123--132},
address = {Bergen, Norwegen},
month = {September},
timestamp = {2016.08.15}
}
Semi-Immersive 3D Sketching of Vascular Structures for Medical Education
Paul Klemm, Kai Lawonn, Sylvia Glaßer, Uli Niemann, Katrin Hegenscheid, Henry V\ olzke, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 81-90, 2015
BIBTeX
Media
@ARTICLE{Klemm_2015_TVCG,
author = {Paul Klemm and Kai Lawonn and Sylvia Glaßer and Uli Niemann and Katrin
Hegenscheid and Henry V{\"o}lzke and Bernhard Preim},
title = {{3D Regression Heat Map Analysis of Population Study Data}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2015},
volume = {22 (1)},
pages = {81--90},
number = {1},
owner = {klemm},
timestamp = {2015.08.10}
}
Paul Klemm: 3D Regression Heat Map
Benjamin Köhler, Uta Preim, Matthias Grothoff, Matthias Gutberlet, Katharina Fischbach, Bernhard Preim
International Journal of Computer-Assisted Radiology and Surgery (IJCARS), pp. 1-11, 2015
BIBTeX
Media
@InProceedings{Koehler_2015_IJCARS,
author = {Benjamin Köhler and Uta Preim and Matthias Grothoff and Matthias Gutberlet and Katharina Fischbach and Bernhard Preim},
title = {{Motion-aware stroke volume quantification in 4D PC-MRI data of the human aorta}},
booktitle = {{International Journal of Computer-Assisted Radiology and Surgery (IJCARS)}},
year = {2015},
pages = {1--11},
publisher = {Springer},
keywords = {IJCARS,d},
owner = {behrendt},
timestamp = {2015.09.23},
}
Motion-Aware Stroke Volume Quantification in 4D PC-MRI Data of the Human Aorta
Kai Lawonn, Maria Luz, Bernhard Preim, Christian Hansen
International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), pp. 399-406, 2015
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2015_MICCAI,
author = {Kai Lawonn and Maria Luz and Bernhard Preim and Christian Hansen},
title = {{Illustrative Visualization of Vascular Models for Static 2D Representations}},
booktitle = {{International Conference on Medical Image Computing and Computer
Assisted Intervention (MICCAI)}},
year = {2015},
pages = {399--406},
address = {München},
month = {Oktober},
owner = {schumann},
timestamp = {2015.06.18}
}
Kai Lawonn, Sylvia Glaßer, Anna Vilanova, Bernhard Preim, Tobias Isenberg
IEEE Transactions on Visualization and Computer Graphics (TVCG), 22 (1), pp. 728-737, 2015
BIBTeX
Media
@ARTICLE{Lawonn_2015_TVCG,
author = {Kai Lawonn and Sylvia Glaßer and Anna Vilanova and Bernhard Preim
and Tobias Isenberg},
title = {{Occlusion-free Blood Flow Animation with Wall Thickness Visualization}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2015},
volume = {22 (1)},
pages = {728--737},
number = {1},
owner = {klemm},
timestamp = {2015.08.10}
}
Occlusion-free Blood Flow Animation with Wall Thickness Visualization
Kai Lawonn, Noeska Smit, Bernhard Preim, Anna Vilanova
Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 103-112, 2015
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2015_VCBM,
author = {Kai Lawonn and Noeska Smit and Bernhard Preim and Anna Vilanova},
title = {{Illustrative Multi-volume Rendering for PET/CT Scans}},
booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine
(VCBM)}},
year = {2015},
pages = {103--112},
address = {Chester, UK},
month = {September},
owner = {schumann},
timestamp = {2015.09.18}
}
Illustrative Multi-volume Rendering for PET/CT Scans
Abstract?In this paper we present illustrative visualization techniques for PET/CT datasets. PET/CT scanners acquire both PET and CT image data in order to combine functional metabolic information with structural anatomical information. Current visualization techniques mainly rely on 2D image fusion techniques to convey this combined information to physicians. We introduce an illustrative 3D visualization technique, specifically designed for use with PET/CT datasets. This allows the user to easily detect foci in the PET data and to localize these regions by providing anatomical contextual information from the CT data. Furthermore, we provide transfer function specifically designed for PET data that facilitates the investigation of interesting regions. Our technique allows users to get a quick overview of regions of interest and can be used in treatment planning, doctor-patient communication and interdisciplinary communication. We conducted a qualitative evaluation with medical experts to validate the utility of our method in clinical practice.
Patrick Saalfeld, Alexandra Baer, Uta Preim, Bernhard Preim, Kai Lawonn
Proc. of the 10th International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 379-390, 2015
BIBTeX
Media
@INPROCEEDINGS{Saalfeld_2015_GRAPP,
author = {Patrick Saalfeld and Alexandra Baer and Uta Preim and Bernhard Preim
and Kai Lawonn},
title = {{Sketching 2D Vessels and Vascular Diseases with Integrated Blood
Flow}},
booktitle = {{Proc. of the 10th International Conference on Computer Graphics
Theory and Applications (GRAPP)}},
year = {2015},
pages = {379--390},
address = {Berlin},
month = {März},
owner = {saalfeld},
timestamp = {2015.01.19}
}
Flatmap
Sketching 2D Vessels and Vascular Diseases with Integrated Blood Flow
Sylvia Glaßer, Kai Lawonn, Bernhard Preim
In Proc. of Conference on Computer Graphics Theory and Applications (VISIGRAPP/GRAPP), pp. 169-176, 2014
BIBTeX
Media
@INPROCEEDINGS{Glasser_2014_GRAPP,
author = {Sylvia Glaßer and Kai Lawonn and Bernhard Preim},
title = {{Visualization of 3D Cluster Results for Medical Tomographic Image
Data}},
booktitle = {{In Proc. of Conference on Computer Graphics Theory and Applications
(VISIGRAPP/GRAPP)}},
year = {2014},
pages = {169--176},
owner = {glasser},
timestamp = {2014.01.01}
}
Video of 3D Cluster View
Overview of the 3D Clustering Visualization
Kai Lawonn, Michael Krone, Thomas Ertl, Bernhard Preim
Computer Graphics Forum (Eurographics Conference on Visualization (EuroVis) 2014), 33(3), pp. 181-190, 2014
BIBTeX
Media
@ARTICLE{Lawonn_2014_CGF,
author = {Kai Lawonn and Michael Krone and Thomas Ertl and Bernhard Preim},
title = {{Line Integral Convolution for Real-Time Illustration of Molecular
Surface Shape and Salient Regions}},
journal = {{Computer Graphics Forum (Eurographics Conference on Visualization
(EuroVis) 2014)}},
year = {2014},
volume = {33(3)},
pages = {181--190},
owner = {schumann},
timestamp = {2013.05.24}
}
Teaser
We present a novel line drawing algorithm that illustrates surfaces in real-time to convey their shape. We use line integral convolution (LIC) and employ ambient occlusion for illustrative surface rendering. Furthermore, our method depicts salient regions based on the illumination gradient. Our method works on animated surfaces in a frame-coherent manner. Therefore, it yields an illustrative representation of time-dependent surfaces as no preprocessing step is needed. In this paper, the method is used to highlight the structure of molecular surfaces and to illustrate important surface features like cavities, channels, and pockets. The benefit of our method was evaluated with domain experts. We also demonstrate the applicability of our method to medical visualization.
Kai Lawonn, Rocco Gasteiger, Bernhard Preim
Computer Graphics Forum, 33(8), pp. 16-27, 2014
BIBTeX
Media
@ARTICLE{Lawonn_2014_CGFb,
author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
title = {{Adaptive Surface Visualization of Vessels with Animated Blood Flow}},
journal = {{Computer Graphics Forum}},
year = {2014},
volume = {33(8)},
pages = {16--27},
owner = {lawonn},
timestamp = {2014.03.21}
}
Teaser
The investigation of hemodynamic information for the assessment of cardiovascular diseases (CVDs) gained importance in recent years. Improved flow measuring modalities and computational fluid dynamics (CFD) simulations yield in reliable blood flow information. For a visual exploration of the flow information, domain experts are used to investigate the flow information combined with its enclosed vessel anatomy. Since the flow is spatially embedded in the surrounding vessel surface, occlusion problems have to be resolved. A visual reduction of the vessel surface that still provides important anatomical features is required. We accomplish this by applying an adaptive surface visualization inspired by the suggestive contour measure. Furthermore, an illustration is employed to highlight the animated pathlines and to emphasize nearby surface regions. Our approach combines several visualization techniques to improve the perception of surface shape and depth. Thereby, we ensure appropriate visibility of the embedded flow information, which can be depicted with established or advanced flow visualization techniques. We apply our approach to cerebral aneurysms and aortas with simulated and measured blood flow. An informal user feedback with nine domain experts, we confirm the advantages of our approach compared with existing methods, e.g. semi-transparent surface rendering. Additionally, we assessed the applicability and usefulness of the pathline animation with highlighting nearby surface regions.
Kai Lawonn, Tobias Günther, Bernhard Preim
EuroVis - Short Papers, pp. 5-, 2014
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2014_EuroVis,
author = {Kai Lawonn and Tobias Günther and Bernhard Preim},
title = {Coherent View-Dependent Streamlines for Understanding Blood Flow},
booktitle = {EuroVis - Short Papers},
year = {2014},
pages = {5 Seiten},
owner = {lawonn},
timestamp = {2014.05.02}
}
Teaser
The expressive visualization of (time-dependent) 3D blood flow along with the vessel wall is essential for understanding vascular diseases. However, the high complexity of the underlying flow data makes the exploration challenging. For the biomedical research, it is necessary to provide methods that allow for rapid flow comprehension, ideally by emphasizing relevant flow characteristics. Therefore, we present a fast approach that visualizes streamlines in a view-dependent way, while taking relevant flow features into consideration. For this, we adapt a well-established non-photorealistic rendering technique (suggestive contours) for surface meshes to streamline illustrations. The advantages of our approach are confirmed in an informal user feedback with domain experts, who were able to comprehend the overall flow behavior faster.
Steffen Oeltze, Dirk J. Lehmann, Alexander Kuhn, Gabor Janiga, Holger Theisel, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 20(5), pp. 686-701, 2014
BIBTeX
Media
@ARTICLE{Oeltze_2014_TVCG,
author = {Steffen Oeltze and Dirk J. Lehmann and Alexander Kuhn and Gabor Janiga
and Holger Theisel and Bernhard Preim},
title = {{Blood Flow Clustering and Applications in Virtual Stenting of Intracranial
Aneurysms}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2014},
volume = {20(5)},
pages = {686--701},
keywords = {TVCG,d},
owner = {oeltze},
timestamp = {2014.01.01}
}
Clustering Blood Flow in a Saccular Side-Wall Aneurysm
The blood flow in a saccular side-wall aneurysm has been simulated based on the vascular morphology extracted from patient-individual data. The resulting flow data is often visualized by a dense and cluttered set of streamlines. Clustering the streamlines and computing cluster representatives reduces visual clutter and exposes characteristic flow structures. The resulting flow summary benefits the assessment of aneurysmal hemodynamics.
B. Köhler, R. Gasteiger, U. Preim, H. Theisel, M. Gutberlet, B. Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 19(12), pp. 2773-2782, 2013
BIBTeX
Media
@ARTICLE{Koehler_2013_TVCG,
author = {B. Köhler and R. Gasteiger and U. Preim and H. Theisel and M. Gutberlet
and B. Preim},
title = {{Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow
Data using Line Predicates}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2013},
volume = {19(12)},
pages = {2773--2782},
owner = {schumann},
timestamp = {2013.08.08}
}
Semi-Automatic Vortex Extraction in 4D PC-MRI Cardiac Blood Flow Data using Line Predicates
Kai Lawonn, Tobias Mönch, Bernhard Preim
Computer Graphics Forum, 32(3), pp. 321-330, 2013
BIBTeX
Media
@ARTICLE{Lawonn_2013_CGF,
author = {Kai Lawonn and Tobias Mönch and Bernhard Preim},
title = {{Streamlines for Illustrative Real-time Rendering}},
journal = {{Computer Graphics Forum}},
year = {2013},
volume = {32(3)},
pages = {321--330},
owner = {schumann},
timestamp = {2013.05.24}
}
Method
Overview of the method
Examples
Miscellaneous Models
Kai Lawonn, Rocco Gasteiger, Bernhard Preim
VMV 2013 - Vision Modeling Visualization, pp. 113-120, 2013
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2013_VMV,
author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
title = {{Adaptive Surface Visualization of Vessels with Embedded Blood Flow
Based on the Suggestive Contour Measure}},
booktitle = {{VMV 2013 - Vision, Modeling, Visualization}},
year = {2013},
editor = {Michael Bronstein, Jean Favre, and Kai Hormann},
pages = {113--120},
address = {Lugano},
month = {11.-13. September}
}
Video
Overview of the method
Mathias Neugebauer, Kai Lawonn, Oliver Beuing, Philipp Berg, Gabor Janiga, Bernhard Preim
Computer Graphics Forum, 32(3), pp. 251-260, 2013
BIBTeX
Media
@ARTICLE{Neugebauer_2013_CGF,
author = {Mathias Neugebauer and Kai Lawonn and Oliver Beuing and Philipp Berg
and Gabor Janiga and Bernhard Preim},
title = {{AmniVis - A System for Qualitative Exploration of Near-Wall Hemodynamics
in Cerebral Aneurysms}},
journal = {{Computer Graphics Forum}},
year = {2013},
volume = {32(3)},
pages = {251--260},
owner = {schumann},
timestamp = {2013.05.24}
}
AmniVis
AmniVis - A system for visual qualitative exploration of near-wall flow patterns in cerebral aneurysms.
Rocco Gasteiger, Dirk J. Lehmann, Roy van Pelt, Gabor Janiga Oliver Beuing, Anna Vilanova, Holger Theisel, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 18(12), pp. 2178-2187, 2012
BIBTeX
Media
@ARTICLE{Gasteiger_2012_VIS,
author = {Rocco Gasteiger and Dirk J. Lehmann and Roy van Pelt and Gabor Janiga
and Oliver Beuing and Anna Vilanova and Holger Theisel and Bernhard
Preim},
title = {{Automatic Detection and Visualization of Qualitative Hemodynamic
Characteristics in Cerebral Aneurysms}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2012},
volume = {18(12)},
pages = {2178--2187},
number = {12},
month = {December},
doi = {xx.xxxx/xxxxxxx.xxxxxxx}
}
Video
The video presents the automatically extracted inflow jet and impingement zone of a steady flow dataset in a cerebral aneurysm. The extraction approach is based on the inflow streamlines seeded at the ostium and employs local streamline properties (e.g., curvature and distances to the aneurysm wall). Several visualization techniques depict both characteristics.
Tobias Mönch, Christoph Kubisch, Kai Lawonn, Rüdiger Westermann, Bernhard Preim
VCBM 2012 - Eurographics Workshop on Visual Computing for Biology and Medicine, pp. 91-98, 2012
BIBTeX
Media
@INPROCEEDINGS{Moench_2012_VCBM,
author = {Tobias Mönch and Christoph Kubisch and Kai Lawonn and Rüdiger Westermann
and Bernhard Preim},
title = {{Visually Guided Mesh Smoothing for Medical Applications}},
booktitle = {{VCBM 2012 - Eurographics Workshop on Visual Computing for Biology
and Medicine}},
year = {2012},
pages = {91--98},
address = {Norrköping},
month = {September},
keywords = {VCBM,d},
owner = {schumann},
timestamp = {2012.10.09}
}
Video 1
Sample video of realtime mesh smoothing with mouse movements mapped onto smoothing parameters.
Video 2
Sample video of realtime mesh smoothing. Quality measures, such as local errors, volume preservation, and curvature are computed in realtime.
Video 3
Sample video of realtime mesh smoothing. Parameter suggestions may be generated for patient-specific data based on only one parameter - the target smoothness.
Rocco Gasteiger, Mathias Neugebauer, Oliver Beuing, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 17, pp. 2183-2192, 2011
BIBTeX
Media
@ARTICLE{Gasteiger_2011_VIS,
author = {Rocco Gasteiger and Mathias Neugebauer and Oliver Beuing and Bernhard
Preim},
title = {{The FLOWLENS: A Focus-and-Context Visualization Approach for Exploration
of Blood Flow in Cerebral Aneurysms}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2011},
volume = {17},
pages = {2183-2192},
number = {12},
keywords = {VIS, d},
owner = {Rocco Gasteiger},
timestamp = {2011.07.19}
}
Lens-Based Flow Exploration of Cerebral Aneurysms
This video presents the FlowLens concept, a visual exploration approach of blood flow data in cerebral aneurysms. Relevant hemodynamic attributes, e.g., wall shear stress or pressure, are grouped to focus-and-context pairs and assigned to three different spatial scopes (global, near-wall, aneurysm). A 2.5D lens shape is used to embed locally the visualization of the context attribute within the focus attribute.
Mathias Neugebauer, Gabor Janiga, Oliver Beuing, Martin Skalej, Bernhard Preim
Computer Graphics Forum (EuroVis), 30(3), pp. 1041-1050, 2011
BIBTeX
Media
@ARTICLE{Neugebauer_2011_Eurovis,
author = {Mathias Neugebauer and Gabor Janiga and Oliver Beuing and Martin
Skalej and Bernhard Preim},
title = {{Anatomy-Guided Multi-Level Exploration of Blood Flow in Cerebral
Aneurysms}},
journal = {{Computer Graphics Forum (EuroVis)}},
year = {2011},
volume = {30(3)},
pages = {1041--1050},
owner = {Mathias},
timestamp = {2011.04.04}
}
Anatomy-Guided Multi-Level Exploration of Blood Flow
We present a three-scope approach for qualitative visual exploration of blood flow data. The scopes include a global scope, an ostium scope and a local scope. They are related to anatomic features such as the centerline, the ostium or the central aneurysm axis. The exploration includes multi-parameter visualisations and specialized widgets.
Steffen Oeltze, Wolfgang Freiler, Reyk Hillert, Helmut Doleisch, Bernhard Preim, Walter Schubert
IEEE Transactions on Visualization and Computer Graphics (TVCG), 17(12), pp. 1882-1891, 2011
BIBTeX
Media
@ARTICLE{Oeltze_2011_VIS,
author = {Steffen Oeltze and Wolfgang Freiler and Reyk Hillert and Helmut Doleisch
and Bernhard Preim and Walter Schubert},
title = {{Interactive, Graph-Based Visual Analysis of High-Dimensional, Multi-Parameter
Fluorescence Microscopy Data in Toponomics}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2011},
volume = {17(12)},
pages = {1882--1891},
note = {to appear},
comment = {to appear},
keywords = {VIS, d},
owner = {Steffen Oeltze},
timestamp = {2011.08.16}
}
Interactive Visual Analysis of Toponome Data
Interactive, graph-based visual analysis of toponome data. This special kind of data depicts the location and topological distribution of proteins in a cell or tissue sample. The particular data shown in the video represents a probe containing lymphocytes. The visual analysis framework supports the biologist in detecting and understanding a cell's function protein patterns.
Rocco Gasteiger, Mathias Neugebauer, Christoph Kubisch, Bernhard Preim
Eurographics Workshop on Visual Computing for Biology and Medicine (EG VCBM), pp. 25-32, 2010
BIBTeX
Media
@INPROCEEDINGS{Gasteiger_2010_VCBM,
author = {Rocco Gasteiger and Mathias Neugebauer and Christoph Kubisch and
Bernhard Preim},
title = {{Adapted Surface Visualization of Cerebral Aneurysms with Embedded
Blood Flow Information}},
booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine
(EG VCBM)}},
year = {2010},
pages = {25-32},
keywords = {VCBM;d},
owner = {schumann},
timestamp = {2010.04.19}
}
Adaptive Surface Visualization
This video presents a new adaptive visualization technique of Cerebral Aneurysms with Embedded Blood Flow Information. It combines smart visibility techniques, depth cues, and line rendering. More flow perception is achieved in comparison to semi-transparent surface visualization of the enclosing aneurysm.
Sylvia Glaßer, Steffen Oeltze, Anja Hennemuth, Christoph Kubisch, A. Mahnken, S. Wilhelmsen, Bernhard Preim
Computer Graphics Forum, 29 (1), pp. 191-201, 2010
BIBTeX
Media
@ARTICLE{Glasser_2010_CGF,
author = {Sylvia Glaßer and Steffen Oeltze and Anja Hennemuth and Christoph
Kubisch and A. Mahnken and S. Wilhelmsen and Bernhard Preim},
title = {{Automatic Transfer Function Specification for Visual Emphasis of
Coronary Artery Plaque}},
journal = {{Computer Graphics Forum}},
year = {2010},
volume = {29 (1)},
pages = {191--201},
number = {1},
month = {Januar},
keywords = {CGF,d},
owner = {schumann},
timestamp = {2010.02.10}
}
Supplemental Material
Tobias Mönch, Simon Adler, Bernhard Preim
Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 83-90, 2010
BIBTeX
Media
@INPROCEEDINGS{Moench_2010_VCBM,
author = {Tobias Mönch and Simon Adler and Bernhard Preim},
title = {{Staircase-Aware Smoothing of Medical Surface Meshes}},
booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine
(VCBM)}},
year = {2010},
pages = {83--90},
keywords = {VCBM,d},
owner = {tmoench},
timestamp = {2010.05.03}
}
Staircase-Aware Examples
Example of locally adaptive mesh smoothing using a staircase-aware approach.
Staircase-Aware Adjustment
Example of locally adaptive mesh smoothing using a staircase-aware approach. The video shows the adjustment of different parameters.
Mathias Neugebauer, Volker Diehl, Martin Skalej, Bernhard Preim
VMV 2010 - Vision Modeling Visualization, pp. 307-314, 2010
BIBTeX
Media
@INPROCEEDINGS{Neugebauer_2010_VMV,
author = {Mathias Neugebauer and Volker Diehl and Martin Skalej and Bernhard
Preim},
title = {{Geometric Reconstruction of the Ostium of Cerebral Aneurysms}},
booktitle = {{VMV 2010 - Vision, Modeling, Visualization}},
year = {2010},
editor = {Reinhard Koch and Andreas Kolb and Christopf Rezk-Salama},
pages = {307--314},
address = {Siegen},
month = {15.-17. November},
keywords = {VMV,d},
owner = {schumann},
timestamp = {2010.11.29}
}
Reconstruction of the Ostium
This video presents an approach to automatically extract important landmarks and geometrically reconstruct the ostium. As shown, the ostium can be used to seperate the aneurysm from the parent vessel. It forms the basis for a variety of applications, e.g. feature-aware visualization or guided interaction.
Mathias Neugebauer, Rocco Gasteiger, Oliver Beuing, Volker Diehl, Martin Skalej, Bernhard Preim
Computer Graphics Forum (EuroVis), pp. 895-902, 2009
BIBTeX
Media
@INPROCEEDINGS{Neugebauer_2009_Eurovis,
author = {Mathias Neugebauer and Rocco Gasteiger and Oliver Beuing and Volker
Diehl and Martin Skalej and Bernhard Preim},
title = {{Map Displays for the Analysis of Scalar Data on Cerebral Aneurysm
Surfaces}},
booktitle = {{Computer Graphics Forum (EuroVis)}},
year = {2009},
volume = {28 (3)},
pages = {895--902},
address = {Berlin},
month = {10.-12. Juni},
keywords = {Eurovis,d},
owner = {schumann},
timestamp = {2009.06.25}
}
Flatmap
An overview visualization for scalar values (in this case wall shear stress) mapped on the aneurysm surface.
Steffen Oeltze, Anja Hennemuth, Sylvia Glaßer, Caroline Kühnel, Bernhard Preim
VCBM, pp. 11-20, 2008
BIBTeX
Media
@INPROCEEDINGS{Oeltze_2008_VCBM,
author = {Steffen Oeltze and Anja Hennemuth and Sylvia Glaßer and Caroline
Kühnel and Bernhard Preim},
title = {{Glyph-Based Visualization of Myocardial Perfusion Data and Enhancement
with Contractility and Viability Information}},
booktitle = {{VCBM}},
year = {2008},
pages = {11--20},
keywords = {VCBM,d},
owner = {schumann},
timestamp = {2008.09.03}
}
Glyphs for encoding myocardial perfusion in 3D
Video illustrating the development and application of glyphs to encoding
Steffen Oeltze, Helmut Doleisch, Helwig Hauser, Philipp Muigg, Bernhard Preim
IEEE Transactions on Visualization and Computer Graphics (TVCG), 13, pp. 1392-1399, 2007
BIBTeX
Media
@ARTICLE{Oeltze_2007_TVCG,
author = {Steffen Oeltze and Helmut Doleisch and Helwig Hauser and Philipp
Muigg and Bernhard Preim},
title = {{Interactive Visual Analysis of Perfusion Data}},
journal = {{IEEE Transactions on Visualization and Computer Graphics (TVCG)}},
year = {2007},
volume = {13},
pages = {1392--1399},
number = {6},
month = {28. October - 1. November},
file = {IEEEVIS_Oeltze_VAoPD_2007.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/IEEEVIS_Oeltze_VAoPD_2007.pdf:PDF},
keywords = {TVCG,d},
owner = {schumann},
timestamp = {2007.11.05}
}
Interactive visual analysis in breast tumor diagnosis
Video showing the interactive visual analysis of a dataset from breast tumor
Steffen Oeltze, Frank Grothues, Anja Hennemuth, Anja Kuß, Bernhard Preim
IEEE/Eurographics Symposium on Visualization, pp. 131-138, 2006
BIBTeX
Media
@INPROCEEDINGS{Oeltze_2006_Eurovis,
author = {Steffen Oeltze and Frank Grothues and Anja Hennemuth and Anja Kuß
and Bernhard Preim},
title = {{Integrated Visualization of Morphologic and Perfusion Data for the
Analysis of Coronary Artery Disease}},
booktitle = {{IEEE/Eurographics Symposium on Visualization}},
year = {2006},
series = {Informatik aktuell},
pages = {131--138},
publisher = {Springer},
file = {Oeltze_EuroVis_2006_CAD.pdf:http\://wwwisg.cs.uni-magdeburg.de/cv/pub/files/Oeltze_EuroVis_2006_CAD.pdf:PDF},
keywords = {Eurovis,d},
owner = {schumann},
timestamp = {2009.09.17}
}
Integrated visualization of cardiac perfusion and anatomy
Video illustrating the integration of myocardial perfusion and ventricular as well as vascular anatomy of a patient suffering from atherosclerosis. (Data is courtesy of M. Fenchel, S. Miller and A. Seeger, Max Planck MR-center, University of Tübingen, Germany, S. Achenbach, Department of Radiology, University of Erlangen-Nürnberg, Germany, and SIEMENS Healthcare)


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